Regulator for melting-pots.



J. E. LOWDEN.

REGULATOR rox MENING Pos.

Patented Oct. 12, 1915;.l

APPLICATION FILED AUG-6. 1913.

IIN

Il" lill Vma! UMTED sTA'rns PA omen.

JOSEPH E. LOWDEN, 'OF CINCINNATI, OHIO, ASSIGNQR T0 THE GEORGE E. LEE

COMPANY, A CORPORATION 0F OHIO.

nEeULA'ioB. For. marmara-Poms.

Specification of lLetters Patent. l

Patented oet. 12, 1915.

Application led August 6, 1913. Serial No. 783,387.

To all whom t may concern.'

Be it known that I, J o`s'EPH E. LowDEN, a citizen of the United States,residing at Cincinnati, in the county of Hamilton and' State of Ohio,have invented certain new and useful Improvements in Regulators forMelting-Pots, of which the following is a specication.

This invention relates to melting pots, and isparticularly but notexclusively adapted for use in connection with the metal pots oflinotype or other type casting machines.

The invention comprises a regulator for controlling the flow of gas usedto heat the metal for supplying the metal to the feeding pot as fast asit is needed.

The regulator is shown applied in connection with an auxiliary meltmgpot or cup which supplies molten metal to the feeding pot from which themetal is taken in the operation of the machine, the regulator being soconstructed and arranged that the flow of gas to the burner under themelting pot or cup is controlled by the height of metal in the main orfeeding pot, whereby the metal is maintained at a uniform height, andthe apparatus will be free from the many objections incident to metaltoo hot or too cold, as well as effecting a saving of gas and havingother advantages which will be apparent to those skilled inthe art.

One embodiment of the invention is` illustrated in the accompanyingdrawings in which- Figure 1 is a side elevation partly in section of thedevice. Fig. 2 is a detail in top plan view of the gas connections tothe regulator. Fig. 3 is a section through the head of tube 17.

Referring specifically to the drawings, 6 indicates the main or feedingpot in which the molten metal is contained. This is supported on theframe of the machine in any suitable way, as by a hanger 7.

8 indicates a melting cup or pot which receives the ingot 9, and fromwhich lcup the molten metal drops through an. opening 10 into the mainpot 6, as fast as the metal is melted. A standpipe 11 surrounds the cup8 and acts as a guide and confines the heat. A burner 12 is locatedunder the melting cup 8. These parts are supportedby a bracket 13clamped to a part of the machine indicated at 14.A h

15 indicates t e gas suppl i e which leads to a pipe 16 dependingyili)d) tube 17 which hangs 1n the main potl 6, being supported by a hanger18 attached to a part of the frame. The lower end of the tube 17projects below the lower end of the inner tube 16. From 'the head of thetube 1,7 a pipe 19 connects to the gas burner, and another pipe 20extends from the head of said tube to a pilot light at the burner, saidpipe 20 having a small passage communicating with the pipe 15 in theheadof the regulator, so that there is always a flow to the pilot light.

The lower open end of the tube 17 is always sealed by the metal inthepot 6, and the lower open end of the supply pipe 16 is opened or closedautomatically by the fall and rise of the metal in said pot. When thelevel of the metal is below the lower end of the pipe 16 it is'openedand gas flows therefrom into the pipe 17 and thence to the main burnerwhich is lighted by the pilot and melts the metal in the cup 8 and themolten is raised suliciently to close the mouth of the pipe 16. Thisshuts olf the gas yand stops the melting action until the metal in thepot again falls below and opens the mouth of the tube 16, when theaction is repeated. 4

It will be seen that the action of the burner and the melting of themetal thereby in the cup or auxiliary pot is automatically controlled bythe rise and fall of metal in the main pot. This simple device thereforeserves its purpose under all conditions and automatically controls thesupply of metal, and the device has the lfurther advantage that it canbe applied to existing machines, and is certain and effective in itsoperation.

What I claim as new is:

1. The combination of a main pot a melting pot discharging. into thesame, a burner for heating the latter, and a fuel supply conduit to theburner, said conduit extending into the main pot and having a supplyopeningwhich is opened and closed by the metal in said main pot, as itfalls and rises.

2. A fuel regulatorfor metal pots, comprising, in combination with thepot, a

burner for heating metal su plied to saidpot, and means controlleddirectly by the height of metal in said pot for governing the fuelsupply to said burner, including a conduit depending into the pot inposition to be opened and closed by the metal therein, as it falls andrises.

3. rlhe combination with a metal pot, and a burner for heating metalsupplied thereto,

of a fuel supply conduit leading to said yburner and having a part whichdips into the fuel supply, the inner pipe having an openingcommunicating with the outer pipe and located above the .lower end ofthe latter and adapted to be closed and opened by the rise and fall ofthe metal in the pot.

5. Illhe combination with a metal pot, and a burner for heating metalsupplied thereto, of outer and inner fuel supply pipes depending intothe pot, one of said pipes communicating with the burner and the otherwith the fuel supply, the inner pipe having lan opening communicatingwith the outer pipe an'l located above the lower end of the latter andadapted to be closed and opened by the 'rise and fall ofthe metal in thepot, and a pilot light adjacent tothe burner.

j 6. The combination with a pot, and a Aburner for heating materialsupplied there- "to, of a fuel supply conduit to said burner,

having two parts depending into the pot,

l with a communicating opening between said parts located in position tobe closed and opened by the rise and fall of material in the pot.

7. The combination with a pot, and' a A burner for heating materialsupplied thereto, of an outer pipe connected to said burner anddepending at its open lower end into -said pot, in position to be sealedby the molten ,material therein, -and an inner pipe connected tothe fuelsupply and provided with an opening located above the lower end of saidouter pipe, in position to be closed and opened by the rise and fall ofsaid material in said outer pipe.

8. rllhe combinatlon -with `a pot, and a I burner for. heating materialsupplied therewith apot and a separate melting device arto, of a fuelsupply conduit to said burner provided with a fuel passage exposed tothe material` in said pot and directly controlled by the height of saidmaterial.'

9. ln a metal feeding apparatus for linotype machines or the like, incombination aisance ranged 'to feed molten metal to the pot, a

heater arranged in proximity to the melting device, a supply conduit forthe fuel leading to the heater, and a fuel controller in the .fuelsupply conduit comprising a chamber -Y ranged to feed molten metal tothe pot, a

heater arranged in proximity to the melting device, a supply'conduit forthe fuel leading to the heater, and a fuel controller in the fuelsupplyconduit comprising a chamber provided with a fuel inlet and a fue]outlet and having an opening therein covered by and permitting ingressand egress ofthe molten metal in the pot, so that the molten metal willstop the feed of fuel through the chamber when the molten metal rises inthe chamber suliciently to cut off communication between the inlet andoutlet of the chamber.

11. lin a metal feeding apparatus for linotype machines or the like, incombination with a pot and a separate melting device arranged to feedmolten metal to the pot, a. heater arranged in proximity to the meltingdevice, a fuel supply conduit leading to the heater, and a fuelcontroller in the fuel sup,- ply conduit comprising an outer tube havingan open lower end covered by the molten metal in the pot, and an innertube within the outer tube and having. an open lower end in proximity tothe upper surface of the molten metal in the pot, .the outer tube beingprovided with a fuel inletand a fuelV outlet, one of which includes thelower end of the inner tube, so that the lower end of the inner tube isadapted to be lcovered or uncovered by the molten metal in the pot tothereby control the supply of fuel to the heater. l

12. rlhe combination with a receptacle adapted to hold melted material,of an auxiliary receptacle or melting pot adapted to contain said`material in solid form, a device for melting the material in said pot,a fuel feed pipe having an open end extending adjacent the surface ofthe melted material within said first mentioned reservoir, a chamberedmember surrounding said feed pipe, and extending into the said meltedmaterial, and a fueleduction pipe communi-l solid form, a burner formelting the material in said crucible, aholloW body having an open end,.which end is submerged beneath the melted material Within thereceptacle, a fuel conducting means extending into said hollow bodyadjacent the surface of the liquid material, a fuel outlet means, meansfor introducing fuel to said fuel conducting means, and means. forconducting the fuel from the fuel outlet nieans to the l@ burner.

. In testimony whereof, I afliX my signature in presence of twoWitnesses.

JOSEPH E. LOWDEN.

Witnesses:

EDW. E. CAMPBELL, WM. H. MURPHY.

